/*
 *  Copyright 2019-2020 Fang Jin Biao
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package com.admin.controller;

import java.util.List;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.PutMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import com.admin.model.ColumnInfoModel;
import com.admin.service.IGenConfigService;
import com.admin.service.IGeneratorService;

import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.RequiredArgsConstructor;
import me.zhengjie.exception.BadRequestException;
import me.zhengjie.utils.PageUtil;

/**
 * @author adyfang
 * @since 2020-05-30
 */
@RestController
@RequiredArgsConstructor
@RequestMapping("/api/generator")
@Api(tags = "系统：代码生成管理")
public class AdminGeneratorController {

	private final IGeneratorService generatorService;
	private final IGenConfigService genConfigService;

	@Value("${generator.enabled}")
	private Boolean generatorEnabled;

	@ApiOperation("查询数据库数据")
	@GetMapping(value = "/tables/all")
	public ResponseEntity<Object> queryTables() {
		return new ResponseEntity<>(generatorService.getTables(), HttpStatus.OK);
	}

	@ApiOperation("查询数据库数据")
	@GetMapping(value = "/tables")
	public ResponseEntity<Object> queryTables(@RequestParam(defaultValue = "") String name,
			@RequestParam(defaultValue = "0") Integer page, @RequestParam(defaultValue = "10") Integer size) {
		int[] startEnd = PageUtil.transToStartEnd(page, size);
		return new ResponseEntity<>(generatorService.getTables(name, startEnd), HttpStatus.OK);
	}

	@ApiOperation("查询字段数据")
	@GetMapping(value = "/columns")
	public ResponseEntity<Object> queryColumns(@RequestParam String tableName) {
		List<ColumnInfoModel> columnInfos = generatorService.getColumns(tableName);
		return new ResponseEntity<>(PageUtil.toPage(columnInfos, columnInfos.size()), HttpStatus.OK);
	}

	@ApiOperation("保存字段数据")
	@PutMapping
	public ResponseEntity<HttpStatus> save(@RequestBody List<ColumnInfoModel> columnInfos) {
		generatorService.save(columnInfos);
		return new ResponseEntity<>(HttpStatus.OK);
	}

	@ApiOperation("同步字段数据")
	@PostMapping(value = "sync")
	public ResponseEntity<HttpStatus> sync(@RequestBody List<String> tables) {
		for (String table : tables) {
			generatorService.sync(generatorService.getColumns(table), generatorService.query(table));
		}
		return new ResponseEntity<>(HttpStatus.OK);
	}

	@ApiOperation("生成代码")
	@PostMapping(value = "/{tableName}/{type}")
	public ResponseEntity<Object> generator(@PathVariable String tableName, @PathVariable Integer type,
			HttpServletRequest request, HttpServletResponse response) {
		if (!generatorEnabled && type == 0) {
			throw new BadRequestException("此环境不允许生成代码，请选择预览或者下载查看！");
		}
		switch (type) {
		// 生成代码
		case 0:
			generatorService.generator(genConfigService.find(tableName), generatorService.getColumns(tableName));
			break;
		// 预览
		case 1:
			return generatorService.preview(genConfigService.find(tableName), generatorService.getColumns(tableName));
		// 打包
		case 2:
			generatorService.download(genConfigService.find(tableName), generatorService.getColumns(tableName), request,
					response);
			break;
		default:
			throw new BadRequestException("没有这个选项");
		}
		return new ResponseEntity<>(HttpStatus.OK);
	}
}